Question

1. what is the fifteen - day phase of reducing moon size between full moon and new moon called?

waxing
phasing
waning
cycling

Explanation:

The phase where the moon's illuminated portion decreases from full moon to new moon is called waning. Waxing is when the illuminated part is increasing. Phasing and cycling are not the correct terms for this specific reduction - phase.

Answer:

C. waning